Adjustable mounting hinge for screen printing frames



Aug- 31, 1965 v. H. BARNES 3,203,030

ADJUSTABLE MOUNTING HINGE FOR SCREEN PRINTING FRAMES Filed June '7, 1965 INVENTOR. V//vcE/Vr /z 54m/5 United States Patent 3,203,030 ADJUSTABLE MOUNTING HINGE FOR SCREEN PRINTING FRAMES Vincent H. Barnes, `1322 Linda Rosa Ave., Los Angeles 4'1, Calif. Filed :lune 7, 1963, Ser. No. 286,332 4 Claims. (Cl. I6-129) This invention relates to adjustable mounting hinges Afor screen printing frames, and included in the objects of this invention are:

First, to provide an adjustable mounting hinge for screen printing frames wherein the screen printing frame may be readily and quickly moved, within prescribed limits, in two directions to bring the screen printing frame into precise registry with prints made by other screens, `and then securely locked in such adjusted position.

Second, to provide an adjustable mounting hinge for screen printing frames, which includes a base member arranged for permanent attachment to the screen printing table, a hinge support adjustable in two directions thereon and a clamp means for attachment to a screen printing frame.

Third, to provide an adjustable mounting hinge for screen printing frames which may be readily and quickly attached to or separated from a screen printing frame so that a plurality of frames may be secured thereto in order that the time required to substitute one series of multiple color frames for another set is minimized.

With the above and other objects in view as may appear hereinafter, reference is had to the accompanying drawings in which:

FIGURE l is a plan view of a screen printing frame placed on a table and hinged thereto by the adjustable mounting hinges.

FIGURE 2 is an enlarged plan View of the adjustable mounting hinge.

FIGURE 3 is a plan view of the base member showing the central position of the adjustable mounting bolt by solid lines and indicating by dotted lines various displaced positions thereof.

FIGURE 4 is a sectional View taken through 4-4 of FIGURE 2.

FIGURE 5 is a bottom view with the base member omitted.

The adjustable mounting hinge is employed to pivotally support a screen printing frame 1 on a table 2 in such manner that the screen 3 may be brought into registry with prints made by previous screens, or into registry with respect to reference marks or other reference data.

The adjustable mounting hinge includes a base member 4 having a marginal rim 5 and laterally extending tabs 6 perforated to receive screws 7 for attachment of the base member to the table 2.

The upper surface of the base member forms a deck 8 spaced from the table 2 and having a large aperture 9 therein. The deck 8 receives a hinge-supporting disk 10 having a bore 11 and an upwardly directed counterbore 12.

A bolt 13 extends upwardly through the bore 11 and the counterbore 12. The lower end of the bolt 13 is provided with head 14 and washer 15 which underlie the deck 8. The counterbore 12 receives a compression spring 16. The upper screw-threaded end of the bolt 13 receives a washer 17 and nut 18. Tightening of the nut 18 clamps the hinge of supporting disk 10 to the base member 4.

Extending laterally from one side of the hinge-supporting disk is a pair of spaced hinge brackets 19 which receive a hinge pin 20. An essentially L-shaped lower lixed clamp jaw structure 21 is provided which includes 3,203,030 Patented Aug. 31, 1965 ice a boss 22 fitted between the hinge brackets 19 and jou-rnalled on the hinge pin 20. The jaw structure 21 extends downwardly, then horizontally, from one side of the boss 22 and is adapted to t under a margin of the screen printing frame 1 as indicated in FIGURE l.

A stud bolt 23 is located between the L-shaped portion of the jaw structure and the hinge pin 20 and extends upwardly therefrom to receive a movable clamp jaw 24 which includes a sleeve 25 and a downwardly curved clamp jaw element 26 which overlies the L-shaped portion of the jaw structure 21. The stud bolt 23 also receives a Winged nut 27 so that the movable clamp jaw may be forced downwardly against the upper side of the screen printing frame 1.

Operation of the adjustable mounting hinge for screen printing frames is as follows:

The pair of base members 4 are fastened to the table 2 in such a manner that the bolts 13 extend upwardly through the apertures 9 as shown in FIGURE 3. The hinge-supporting disks are placed over the bolts 13 and the nuts 18 are tightened. It should be noted that when the washer 17 is caused to engage the spring 16, the Washer 15 is brought into frictional contact with the underside of the deck 8 surrounding the aperture 9 so as to restrain the bolts 13 against rotation.

Prior to or subsequent to attaching the hinge-supporting disks to the respective base members, the clamp jaws 21 and 24 are secured to the margin of the screen printing frame 1. After the screen printing frame and adjustable mounting hinges are assembled on the table 2, the nuts 18 of the two hinges may be backed olf slightly so that the screen printing frame may be adjusted along two axes within the limits of movement of the bolts 13 determined by the aperture 9, as indicated by the dotted line positions shown in FIGURE 3.

The springs 16 provide limited resistance to the movement of hinge-supporting disks 10 so that as the screen is shifted for purposes of registry, it will tend to remain in place and not be readily dislodged. After registry has been accomplished, the nuts 18 are tightened whereupon the screen printing frame may be pivoted between its screen printing position and an angular position, with assurance that it will return to its registered position.

While the particular embodiments of the present invention have been shown and described, it will be obvious to those skilled in the art that changes and modifications may be made without departing from this invention in its broader aspects and, therefore, the aim in the appended claims is to cover all such changes and modications as fall within the true spirit and scope of this invention.

I claim:

1. An adjustable mounting hinge for screen printing frames, comprising:

(a) a mounting base member having a raised deck and an accommodation aperture therein;

:(b) a bolt extending through said aperture;

(c) means carried by said bolt and engageable with the margins of said aperture;

(d) a hinge support adapted to receive said bolt and elfect movement thereof within the boundaries of said aperture;

(e) means engageable with said bolt and said base member for locking said bolt with respect to said base member;

(f) hinge means incorporating said hinge support;

(g) and a screen printing frame clamp carried by said hinge means.

2. An adjustable mounting hinge for screen printing frames, comprising:

(a) a mounting base member having a ra-ised deck and an accommodation aperture therein;

3 (b) a bolt extending through said aperture;

(c) means carried by said bolt and engageable with4 the margins of said aperture;

(d) a hinge support adapted to receive said bolt and effect movement thereof within the boundariesof Said aperture;

(e) a spring interposed between said locking means and said hinge support to provide Lfrictional contact between said margin engaging means and said base member to minimize relative rotation of said base member and bolt when said locking means is loosened;

(f) hinge means incorporating said hinge support; v

(g) and a screen printing frame clamp carried by said hinge means. i

3. An adjustable'rnounting hinge for screen printing frames, comprising:

(a) a mounting base member having a raised deck and an accommodation aperture therein;

(b) 'a bolt extending through `said aperture;

(c) means carried by `said "bolt and engageable with the margins of said aperture;

(d) a hinge support adapted to receive said bolt and effect movement thereof within the boundaries of said aperture;

(e) means engageable with said bolt .and said base member for locking said bolt with respect to said ,base member;

(f) a iixed clamp bracket;

(g) hinge means joining said clamp bracket to said hinge support;

(h) a stud carried'by said ixed clamp bracket;

(i) a movable clamp Velement fitting said stud;

(j) and a nut for said stud to eect `clamping of said screen printing frame.

4. An adjustable mounting 'hinge' for SCleen printing frames, comprising:

(a) la mounting base member having a raised deck and an accommodation aperture therein;

(b) a bolt extending through said aperture;

(c) means carried by said bolt and engageable with the margins of said aperture;

(d) a hinge support adapted to receive said bolt and eifect movement thereof within the boundaries of said aperture;

(e) means engageable with said bolt and said base member for `locking said bolt with respect to said base member;

(f) a spring interposed between said locking means and said hinge support to provide frictional Contact between margin engaging means and said base member to minimize relative rotation of said base mem" ber and bolt when said locking means is loosened;

(g) a xed ,clamp bracket;

(h) hinge means joining ,said clamp bracket to said hinge support;

(i) a stud carried by said ixed clamp bracket;

`(j) a movable clamp element fitting said stud;

(k) and a nut for said stud to eect clamping of said screen printing frame..

References Cited bythe Examiner UNITED STATES PATENTS 685,253 10/01 Caldwell 24-263.3 1,044,055 V11/ 12 Johnson et a1. n 16-4-129 1,145,521 7/15 Stock 16-158 1,462,759 7/23 Hinkle 16-158 2,184,259 12/39 Seaman v n 1.6-.129 2,560,613 7 /51 Wahl 24-2633 2,700,789 2/55 Cornwell n 16-,129 3,019,472 2/62 Wasrnuth 1611129 DONLEY I. STOCKING, Primary Examiner. 

1. AN ADJUSTABLE MOUNTING HINGE FOR SCREEN PRINTING FRAMES, COMPRISING: (A) A MOUNTING BASE MEMBER HAVING A RAISED DECK AND AN ACCOMMODATION APERTURE THEREIN; (B) A BOLD EXTENDING THROUGH SAID APERTURE; (C) MEANS CARRIED BY SAID BOLT AND ENGAGEABLE WITH THE MARGINS OF SAID APERTURE; (D) A HINGE SUPPORT ADAPTED TO RECEIVE SAID BOLT AND EFFECT MOVEMENT THEREOF WITHIN THE BOUNDARIES OF SAID APERTURE; (E) MEANS ENGAGEABLE WITH SAID BOLD AND SAID BASE MEMBER FOR LOCKING SAID BOLT WITH RESPECT TO SAID BASE MEMBER; (F) HINGE MEANS INCORPORATING SAID HINGE SUPPORT; (G) AND A SCREEN PRINTING FRAME CLAMP CARRIED BY SAID HINGE MEANS. 